update links

docs/en/observability/logs-checklist.asciidoc

@@ -25,7 +25,7 @@ The following sections in this guide provide resources to important concepts or
 
 [discrete]
 [[logs-send-data-checklist]]
-== Send logs data to {es}
+== Send log data to {es}
 
 You can send log data to {es} in different ways depending on your needs:
 
@@ -65,8 +65,8 @@ Refer to {fleet-guide}/install-elastic-agents-in-containers.html[install {agent}
 === Install {filebeat}
 {filebeat} is a lightweight shipper for forwarding and centralizing log data.
 Installed as a service on your servers, {filebeat} monitors the log files or locations that you specify, collects log events, and forwards them
-either to https://www.elastic.co/products/elasticsearch[{es}] or
-https://www.elastic.co/products/logstash[Logstash] for indexing.
+either to {ref}[{es}] or
+{logstash-ref}[Logstash] for indexing.
 
 - {filebeat-ref}/filebeat-overview.html[{filebeat} overview]: general information on {filebeat} and how it works.
 - {filebeat-ref}/filebeat-installation-configuration.html[{filebeat} quick start]: basic installation instructions to get you started.